<template>
    <el-card class="main-card">
        <div class="title">{{ this.$route.name }}</div>
        <!-- 文章状态 -->
        <div class="article-status-menu">
            <span>状态</span>
            <span @click="changeStatus('all')" :class="isActive('all')">全部</span>
            <span @click="changeStatus('public')" :class="isActive('public')">
        公开
      </span>
            <span @click="changeStatus('secret')" :class="isActive('secret')">
        私密
      </span>
            <span @click="changeStatus('draft')" :class="isActive('draft')">
        草稿箱
      </span>
            <span @click="changeStatus('delete')" :class="isActive('delete')">
        回收站
      </span>
        </div>
        <!-- 表格操作 -->
        <div class="operation-container">
            <el-button v-if="isDelete == 0" type="danger" size="small" icon="el-icon-delete"
                       :disabled="articleIdList.length == 0" @click="updateIsDelete = true">
                批量删除
            </el-button>
            <el-button v-else type="danger" size="small" icon="el-icon-delete" :disabled="articleIdList.length == 0"
                       @click="remove = true">
                批量删除
            </el-button>
            <!-- 条件筛选 -->
            <div style="margin-left:auto">
                <!-- 文章类型 -->
                <el-select clearable v-model="type" placeholder="请选择文章类型" size="small" style="margin-right:1rem">
                    <el-option v-for="item in typeList" :key="item.value" :label="item.label" :value="item.value"/>
                </el-select>
                <!-- 分类 -->
                <el-select clearable size="small" v-model="categoryId" filterable placeholder="请选择分类"
                           style="margin-right:1rem">
                    <el-option v-for="item in categoryList" :key="item.id" :label="item.categoryName" :value="item.id"/>
                </el-select>
                <!-- 标签 -->
                <el-select clearable size="small" v-model="tagId" filterable placeholder="请选择标签"
                           style="margin-right:1rem">
                    <el-option v-for="item in tagList" :key="item.id" :label="item.tagName" :value="item.id"/>
                </el-select>
                <!-- 文章名 -->
                <el-input clearable v-model="keywords" prefix-icon="el-icon-search" size="small"
                          placeholder="请输入文章名" style="width:200px" @keyup.enter.native="searchArticles"/>
                <el-button type="primary" size="small" icon="el-icon-search" style="margin-left:1rem"
                           @click="searchArticles">
                    搜索
                </el-button>
            </div>
        </div>
        <!-- 表格展示 -->
        <el-table border :data="articleList" @selection-change="selectionChange" v-loading="loading">
            <!-- 表格列 -->
            <el-table-column type="selection" width="55"/>
            <!-- 文章修改时间 -->
            <el-table-column prop="articleCover" label="文章封面" width="180" align="center">
                <template slot-scope="scope">
                    <el-image class="article-cover" :src="scope.row.articleCover? scope.row.articleCover
                : 'https://xiaofei-mall.oss-cn-beijing.aliyuncs.com/articles/c5cc2b2561bd0e3060a500198a4ad37d.png'"
                    />
                    <i v-if="scope.row.status == 1" class="iconfont el-icon-mygongkai article-status-icon"/>
                    <i v-if="scope.row.status == 2" class="iconfont el-icon-mymima article-status-icon"/>
                    <i v-if="scope.row.status == 3" class="iconfont el-icon-mycaogaoxiang article-status-icon"/>
                </template>
            </el-table-column>
            <!-- 文章标题 -->
            <el-table-column prop="articleTitle" label="标题" align="center"/>
            <!-- 文章分类 -->
            <el-table-column prop="categoryName" label="分类" width="110" align="center"/>
            <!-- 文章标签 -->
            <el-table-column prop="tagDTOList" label="标签" width="170" align="center">
                <template slot-scope="scope">
                    <el-tag v-for="item of scope.row.tagDTOList" :key="item.tagId"
                            style="margin-right:0.2rem;margin-top:0.2rem">
                        {{ item.tagName }}
                    </el-tag>
                </template>
            </el-table-column>
            <!-- 文章浏览量 -->
            <el-table-column prop="viewsCount" label="浏览量" width="70" align="center">
                <template slot-scope="scope">
          <span v-if="scope.row.viewsCount">
            {{ scope.row.viewsCount }}
          </span>
                    <span v-else>0</span>
                </template>
            </el-table-column>
            <!-- 文章点赞量 -->
            <el-table-column prop="likeCount" label="点赞量" width="70" align="center">
                <template slot-scope="scope">
          <span v-if="scope.row.likeCount">
            {{ scope.row.likeCount }}
          </span>
                    <span v-else>0</span>
                </template>
            </el-table-column>
            <!-- 文章类型 -->
            <el-table-column prop="type" label="类型" width="80" align="center">
                <template slot-scope="scope">
                    <el-tag :type="articleType(scope.row.type).tagType">
                        {{ articleType(scope.row.type).name }}
                    </el-tag>
                </template>
            </el-table-column>
            <!-- 文章发表时间 -->
            <el-table-column prop="createTime" label="发表时间" width="130" align="center">
                <template slot-scope="scope">
                    <i class="el-icon-time" style="margin-right:5px"/>
                    {{ scope.row.createTime | date }}
                </template>
            </el-table-column>
            <!-- 文章置顶 -->
            <el-table-column prop="isTop" label="置顶" width="80" align="center">
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.isTop" active-color="#13ce66" inactive-color="#F4F4F5"
                               :disabled="scope.row.isDelete == 1"
                               :active-value="1" :inactive-value="0" @change="changeTop(scope.row)"/>
                </template>
            </el-table-column>
            <!-- 列操作 -->
            <el-table-column label="操作" align="center" width="150">
                <template slot-scope="scope">
                    <el-button type="primary" size="mini" @click="editArticle(scope.row.id)"
                               v-if="scope.row.isDelete == 0">
                        编辑
                    </el-button>
                    <el-popconfirm title="确定删除吗？" style="margin-left:10px" @confirm="updateArticleDelete(scope.row.id)"
                                   v-if="scope.row.isDelete == 0">
                        <el-button size="mini" type="danger" slot="reference">
                            删除
                        </el-button>
                    </el-popconfirm>
                    <el-popconfirm title="确定恢复吗？" v-if="scope.row.isDelete == 1"
                                   @confirm="updateArticleDelete(scope.row.id)">
                        <el-button size="mini" type="success" slot="reference">
                            恢复
                        </el-button>
                    </el-popconfirm>
                    <el-popconfirm style="margin-left:10px" v-if="scope.row.isDelete == 1"
                                   title="确定彻底删除吗？" @confirm="deleteArticles(scope.row.id)">
                        <el-button size="mini" type="danger" slot="reference">
                            删除
                        </el-button>
                    </el-popconfirm>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页 -->
        <el-pagination class="pagination-container" background @size-change="sizeChange"
                       @current-change="currentChange" :current-page="current" :page-size="size"
                       :total="count" :page-sizes="[10, 20]" layout="total, sizes, prev, pager, next, jumper"/>
        <!-- 批量逻辑删除对话框 -->
        <el-dialog :visible.sync="updateIsDelete" width="30%">
            <div class="dialog-title-container" slot="title">
                <i class="el-icon-warning" style="color:#ff9900"/>提示
            </div>
            <div style="font-size:1rem">是否删除选中项？</div>
            <div slot="footer">
                <el-button @click="updateIsDelete = false">取 消</el-button>
                <el-button type="primary" @click="updateArticleDelete(null)">
                    确 定
                </el-button>
            </div>
        </el-dialog>
        <!-- 批量彻底删除对话框 -->
        <el-dialog :visible.sync="remove" width="30%">
            <div class="dialog-title-container" slot="title">
                <i class="el-icon-warning" style="color:#ff9900"/>提示
            </div>
            <div style="font-size:1rem">是否彻底删除选中项？</div>
            <div slot="footer">
                <el-button @click="remove = false">取 消</el-button>
                <el-button type="primary" @click="deleteArticles(null)">
                    确 定
                </el-button>
            </div>
        </el-dialog>
    </el-card>
</template>

<script>
export default {
    created() {
        this.listArticles();
        this.listCategories();
        this.listTags();
    },
    data: function () {
        return {
            loading: true,
            updateIsDelete: false,
            remove: false,
            typeList: [
                {
                    value: 1,
                    label: "原创"
                },
                {
                    value: 2,
                    label: "转载"
                },
                {
                    value: 3,
                    label: "翻译"
                }
            ],
            activeStatus: "all",
            articleList: [],
            articleIdList: [],
            categoryList: [],
            tagList: [],
            keywords: null,
            type: null,
            categoryId: null,
            tagId: null,
            isDelete: 0,
            status: null,
            current: 1,
            size: 10,
            count: 0
        };
    },
    methods: {
        selectionChange(articleList) {
            this.articleIdList = [];
            articleList.forEach(item => {
                this.articleIdList.push(item.id);
            });
        },
        searchArticles() {
            this.current = 1;
            this.listArticles();
        },
        editArticle(id) {
            this.$router.push({path: "/articles/" + id});
        },
        updateArticleDelete(id) {
            let param = {};
            if (id != null) {
                param.idList = [id];
            } else {
                param.idList = this.articleIdList;
            }
            param.isDelete = this.isDelete == 0 ? 1 : 0;
            this.axios.put("/api/admin/articles", param).then(({data}) => {
                if (data.flag) {
                    this.$notify.success({
                        title: "成功",
                        message: data.message
                    });
                    this.listArticles();
                } else {
                    this.$notify.error({
                        title: "失败",
                        message: data.message
                    });
                }
                this.updateIsDelete = false;
            });
        },
        deleteArticles(id) {
            var param = {};
            if (id == null) {
                param = {data: this.articleIdList};
            } else {
                param = {data: [id]};
            }
            this.axios.delete("/api/admin/articles", param).then(({data}) => {
                if (data.flag) {
                    this.$notify.success({
                        title: "成功",
                        message: data.message
                    });
                    this.listArticles();
                } else {
                    this.$notify.error({
                        title: "失败",
                        message: data.message
                    });
                }
                this.remove = false;
            });
        },
        sizeChange(size) {
            this.size = size;
            this.listArticles();
        },
        currentChange(current) {
            this.current = current;
            this.listArticles();
        },
        changeStatus(status) {
            switch (status) {
                case "all":
                    this.isDelete = 0;
                    this.status = null;
                    break;
                case "public":
                    this.isDelete = 0;
                    this.status = 1;
                    break;
                case "secret":
                    this.isDelete = 0;
                    this.status = 2;
                    break;
                case "draft":
                    this.isDelete = 0;
                    this.status = 3;
                    break;
                case "delete":
                    this.isDelete = 1;
                    this.status = null;
                    break;
            }
            this.current = 1;
            this.activeStatus = status;
        },
        changeTop(article) {
            this.axios
                .put("/api/admin/articles/top", {
                    id: article.id,
                    isTop: article.isTop
                })
                .then(({data}) => {
                    if (data.flag) {
                        this.$notify.success({
                            title: "成功",
                            message: "置顶成功"
                        });
                    } else {
                        this.$notify.error({
                            title: "失败",
                            message: data.message
                        });
                    }
                    this.remove = false;
                });
        },
        listArticles() {
            this.axios
                .get("/api/admin/articles", {
                    params: {
                        current: this.current,
                        size: this.size,
                        keywords: this.keywords,
                        categoryId: this.categoryId,
                        status: this.status,
                        tagId: this.tagId,
                        type: this.type,
                        isDelete: this.isDelete
                    }
                })
                .then(({data}) => {
                    this.articleList = data.data.recordList;
                    this.count = data.data.count;
                    this.loading = false;
                });
        },
        listCategories() {
            this.axios.get("/api/admin/categories/search").then(({data}) => {
                this.categoryList = data.data;
            });
        },
        listTags() {
            this.axios.get("/api/admin/tags/search").then(({data}) => {
                this.tagList = data.data;
            });
        }
    },
    watch: {
        type() {
            this.current = 1;
            this.listArticles();
        },
        categoryId() {
            this.current = 1;
            this.listArticles();
        },
        tagId() {
            this.current = 1;
            this.listArticles();
        },
        status() {
            this.current = 1;
            this.listArticles();
        },
        isDelete() {
            this.current = 1;
            this.listArticles();
        }
    },
    computed: {
        articleType() {
            return function (type) {
                var tagType = "";
                var name = "";
                switch (type) {
                    case 1:
                        tagType = "danger";
                        name = "原创";
                        break;
                    case 2:
                        tagType = "success";
                        name = "转载";
                        break;
                    case 3:
                        tagType = "primary";
                        name = "翻译";
                        break;
                }
                return {
                    tagType: tagType,
                    name: name
                };
            };
        },
        isActive() {
            return function (status) {
                return this.activeStatus == status ? "active-status" : "status";
            };
        }
    }
};
</script>

<style scoped>
.operation-container {
    margin-top: 1.5rem;
}

.article-status-menu {
    font-size: 14px;
    margin-top: 40px;
    color: #999;
}

.article-status-menu span {
    margin-right: 24px;
}

.status {
    cursor: pointer;
}

.active-status {
    cursor: pointer;
    color: #333;
    font-weight: bold;
}

.article-cover {
    position: relative;
    width: 100%;
    height: 90px;
    border-radius: 4px;
}

.article-cover::after {
    content: "";
    background: rgba(0, 0, 0, 0.3);
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}

.article-status-icon {
    color: #fff;
    font-size: 1.5rem;
    position: absolute;
    right: 1rem;
    bottom: 1.4rem;
}
</style>
